//
//  VisitorLoginView.swift
//  Weibo
//
//  Created by 付启刚 on 15/12/13.
//  Copyright © 2015年 faq. All rights reserved.
//

import UIKit
//定义协议
@objc protocol VisitorLoginViewDelegate:NSObjectProtocol{
//声明协议方法
//用户将要登陆
//optional 是OC中的关键字
optional func userWillLogin()
    //用户将要注册
optional func userWillRegister()
}

class VisitorLoginView: UIView {
    //声明代理  代理 要使用 weak 属性关键字
    //swift 属性默认都是strong  代理同样也需要使用weak
    weak var vistorLoginViewDelegate:VisitorLoginViewDelegate?
    //对外提供设置访客视图信息的方法
    func setupInfo(tipText:String,imageName:String?){
    tipLabel.text = tipText
    if let name = imageName{
        //不是首页
    circleView.image=UIImage(named: name)
        //隐藏大房子
        largeIcon.hidden=true
        bringSubviewToFront(circleView)
    }else{
    //是首页
    startAnimation()
    }
}
    private func startAnimation(){
    let anim=CABasicAnimation(keyPath: "transform.rotation")
        //设置动画属性
        anim.repeatCount=MAXFLOAT
        anim.duration=20.0
        anim.toValue=2*M_PI
         //当动画完毕或者页面失去活跃状态动画不移除图层
        anim.removedOnCompletion=false
        //添加动画
        circleView.layer.addAnimation(anim, forKey: nil)
    }
    override init(frame: CGRect) {
        super.init(frame: frame)
        setupUI()
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    private func setupUI(){
        addSubview(circleView)
        addSubview(backView)
        addSubview(largeIcon)
        addSubview(tipLabel)
        addSubview(registerBtn)
        addSubview(loginBtn)
        for subview in subviews{
            //在使用手码添加约束 需要屏蔽 frame布局
            subview.translatesAutoresizingMaskIntoConstraints=false}
        addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterX, relatedBy: .Equal, toItem: self, attribute: .CenterX, multiplier: 1, constant: 0))
            addConstraint(NSLayoutConstraint(item: largeIcon, attribute: .CenterY, relatedBy: .Equal, toItem: self, attribute: .CenterY, multiplier: 1, constant: -60))
            //添加圆圈的约束
            addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterX, relatedBy: .Equal, toItem: largeIcon, attribute: .CenterX, multiplier: 1, constant: 0))
            
            addConstraint(NSLayoutConstraint(item: circleView, attribute: .CenterY, relatedBy: .Equal, toItem: largeIcon, attribute: .CenterY, multiplier: 1, constant: 0))
            addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .CenterX, relatedBy: .Equal, toItem: circleView, attribute: .CenterX, multiplier: 1, constant: 0))
            addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Top, relatedBy: .Equal, toItem: circleView, attribute: .Bottom, multiplier: 1, constant: 16))
            //If your equation does not have a second view and attribute, use nil and NSLayoutAttributeNotAnAttribute.
            addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 230))
            addConstraint(NSLayoutConstraint(item: tipLabel, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 40))
            
            //按钮的约束
            
            addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Left, relatedBy: .Equal, toItem: tipLabel, attribute: .Left, multiplier: 1, constant: 0))
            addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
            //If your equation does not have a second view and attribute, use nil and NSLayoutAttributeNotAnAttribute.
            addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 100))
            addConstraint(NSLayoutConstraint(item: loginBtn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
            
            
            addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Right, relatedBy: .Equal, toItem: tipLabel, attribute: .Right, multiplier: 1, constant: 0))
            addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Top, relatedBy: .Equal, toItem: tipLabel, attribute: .Bottom, multiplier: 1, constant: 20))
            //If your equation does not have a second view and attribute, use nil and NSLayoutAttributeNotAnAttribute.
            addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Width, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 100))
            addConstraint(NSLayoutConstraint(item: registerBtn, attribute: .Height, relatedBy: .Equal, toItem: nil, attribute: .NotAnAttribute, multiplier: 1, constant: 35))
        //设置背景视图的约束 可视化的布局语言
        //OC 中可选项 一般使用 按位 或枚举选项  swift中直接指定数组
        //metrics:约束数值字典 [String: 数值]
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[backView]-0-|", options: [], metrics: nil, views: ["backView": backView]))
        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-0-[backView]-(-35)-[regBtn]", options: [], metrics: nil, views: ["backView": backView,"regBtn":registerBtn]))
        //设置视图的背景颜色
        backgroundColor=UIColor(white: 0.93, alpha: 1)
        registerBtn.addTarget(self, action: "registerBtnDidClick", forControlEvents: .TouchUpInside)
        loginBtn.addTarget(self, action: "loginBtnDidClick", forControlEvents: .TouchUpInside)
    }
   @objc private func registerBtnDidClick(){
    vistorLoginViewDelegate?.userWillRegister?()
    }
   @objc private func loginBtnDidClick(){
    vistorLoginViewDelegate?.userWillLogin?()
    
    }
    //懒加载所有子视图
     private lazy var backView: UIImageView = UIImageView(image: UIImage(named: "visitordiscover_feed_mask_smallicon"))
   private lazy var largeIcon:UIImageView={
    UIImageView(image: UIImage(named: "visitordiscover_feed_image_house"))
    }()
   private lazy var circleView:UIImageView={
    UIImageView (image: UIImage(named: "visitordiscover_feed_image_smallicon"))
    }()
    private lazy var tipLabel:UILabel=UILabel(title: "关注一些人，回这里看看有什么惊喜,关注一些人，回这里看看有什么惊喜", color: UIColor.darkGrayColor(), fontSize: 14)
//    {
//    let l=UILabel()
//        l.text="关注一些人，回这里看看有什么惊喜,关注一些人，回这里看看有什么惊喜"
//        l.textColor=UIColor.darkGrayColor()
//        l.textAlignment = .Center
//        l.numberOfLines=0
//        l.font=UIFont.systemFontOfSize(14)
//        l.sizeToFit()
//        return l
//    }()
    private lazy var registerBtn:UIButton=UIButton(title: "注册", backImageName: "common_button_white_disable", fontSize: 15, color: themeColor)
//    {
//    let btn=UIButton()
//        btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: .Normal)
//        btn.setTitle("注册", forState: .Normal)
//        btn.titleLabel?.font=UIFont.systemFontOfSize(15)
//        btn.setTitleColor(themeColor, forState: .Normal)
//        btn.sizeToFit()
//        return btn
//    }()
    private lazy var loginBtn:UIButton=UIButton(title: "登陆", backImageName: "common_button_white_disable", fontSize: 15, color: UIColor.darkGrayColor())
//    {
//        let btn=UIButton()
//         btn.setBackgroundImage(UIImage(named: "common_button_white_disable"), forState: .Normal)
//        btn.setTitle("登录", forState: .Normal)
//        btn.titleLabel?.font=UIFont.systemFontOfSize(15)
//        btn.setTitleColor(UIColor.darkGrayColor(), forState: .Normal)
//        btn.sizeToFit()
//        return btn
//    }()
}
